The handle goes right through the brass head and is attached using epoxy and a conventional wedge. The diameter of the brass head is 45-ish mm and the through-hole is 20 mm (about the size of a normal broom-stick). The walls of the hole is purposely not very smooth making for good adhesion of the glue. The handle was finish turned after it was glued in place. Then I could hold the head in the lathe three-jaw and shape the handle to fit and shape as desired. The head is 50 mm long and the handle about 120 mm.